Notes on Rhetorical Triangle, Context, and Applications

Rhetoric as an Umbrella

Rhetoric is described as a big umbrella term for the tools and methods of writing and speaking that aim to influence how someone thinks, feels, or acts. The lecturer emphasizes that rhetoric isn’t one single technique but a broad family of strategies that fall under this umbrella. The key takeaway is to recognize rhetoric as the overarching concept that governs how writers and speakers try to achieve specific effects on their audiences.

The Rhetorical Triangle: Core Concept

The central tool introduced is the rhetorical triangle, a model used to analyze and shape writing and speaking to achieve a purpose. The triangle has three points, each representing a crucial element of any argument or writing situation. Surrounding the triangle is a big circle called context, which informs every aspect of the triangle and is never neglected. The important rule about the triangle is that if any one point changes, the other points must adapt accordingly; the whole triangle must be reviewed in light of the change. A mathematical way to think about the triangle is to denote its corners as a set: T = { \text{Audience}, \text{Message}, \text{Author/Speaker} }, with the context surrounding them as the governing environment.

Audience

Audience is the first corner and refers to whom you are writing or speaking. The audience’s knowledge, background, and needs shape how you present information. The lecturer gives a physics example: if you’re explaining a physics concept to a layperson, you should use a basic, intro level explanation (a 101 approach). If you’re addressing a physics faculty member, you can use more advanced, vocab-heavy language because they understand the field. The audience is described as the most important corner because it determines tone, level of detail, and the approach to communicating the message. The audience is what you are writing for or speaking to, and understanding who they are is essential to deciding how to present the content.

Message

Message refers to what you are writing or saying—the core idea or claim you want to convey. The question to ask is, what is the purpose of the piece? Are you trying to persuade someone to take civic action, inform students how to access a resource, or reveal a local issue? The message is the substantive content and the objective of the communication—what you want the audience to understand, do, or believe as a result of engaging with the piece.

Author/Speaker

The third corner is the author or speaker. This involves considering who is delivering the message and whether they are qualified to speak on the topic. Qualification matters: a physics textbook should be authored by someone with appropriate expertise, as would a medical article written by a trained professional. The lecturer notes the importance of checking for ulterior motives and biases—who the author or organization is and who they work for can influence how the message is framed. Real-world examples include preferring a doctor with a medical degree for medical information, or evaluating a journalist’s or author’s potential biases and affiliations when reading articles. When speaking about yourself in your own writing, you occupy this corner, so your qualifications and stance matter for credibility.

The Context: The Big Circle Around the Triangle

Context is the surrounding circle that informs every part of the triangle. It is everything going on in the world at the time of writing or speaking, including policies, events, and tone appropriate to the situation. The lecturer emphasizes that we never write in a vacuum; context shapes how messages are crafted and delivered. For example, TCC might issue a campus-wide safety email to remind students about resources and procedures on the first day of class, whereas after a safety incident on campus, the tone, content, and urgency would be different. Context continually informs audience, message, and author choices, guiding how the triangle should be filled in different circumstances.

Interdependence: Changing One Corner Changes the Whole Triangle

A key takeaway is the dynamic interdependence of the triangle’s corners. If one point changes, the other points must adapt to maintain coherence and effectiveness. The lecturer uses a practical example to illustrate this: a celebrity’s public apology versus a mayor’s apology. If the author changes from a celebrity to a mayor, you must reassess the audience (fans vs townspeople), the tone, the medium (Instagram versus traditional media), and the messaging to fit the new context. This demonstrates how the three corners are not independent; they are connected, and context can shift how you should address all three corners to achieve the intended effect.

Example: Celebrity Apology and Mayor Apology Scenarios

To make the triangle concrete, the instructor walks through a celebrity apology: the author is a celebrity, the audience is the fans, the message is the apology, and the context is the public misstep caught on social media. Then the scenario changes: the author is the mayor of the town. The audience becomes the citizens of the town. The apology still exists, but the language, tone, and medium shift to suit a political context. A celebrity is likely to use Instagram or other social media to reach fans, while a mayor might use traditional media, a press conference, or an official statement to reach citizens. This exercise shows how changing one corner (the author) necessitates changes in the other corners and the delivery method to align with audience expectations and the broader context.

Why This Tool Matters for Reading and Writing

The rhetorical triangle is presented as one of the most valuable tools for both analyzing others’ writing and shaping your own. By identifying who the audience is, what the message is, and who the author is, along with the surrounding context, you can determine how to read critically and how to craft an effective argument. The teacher plans to revisit the triangle throughout the course, underscoring its central role in both comprehension and production of writing. The triangle is introduced as foundational and will be built upon in future lessons to develop more sophisticated rhetorical analysis and argumentation strategies.

Practical Notes and Reminders

The lecturer also highlights a few practical notes: the overarching definition of rhetoric is the way an author gets you to think, do, believe, or buy something; context should always be considered as the guiding circle; the triangle must be adjusted as circumstances evolve; and the instructor plans to post related visuals (such as an image of the diagram) for study. There is an emphasis on using this model consistently across readings and writing assignments and on recognizing that changes to context or audience can and should change how you present your message and who delivers it.

Summary of Key Points

Rhetoric is the umbrella term for tools of persuasive writing and speaking. The Rhetorical Triangle comprises three corners—Audience, Message, and Author/Speaker—each of which must be considered in tandem with the surrounding Context, the big circle that informs every part of the triangle. Audience dictates the level and style of explanation; Message defines the purpose and content of the communication; Author/Speaker concerns credibility, qualifications, and potential biases. If any corner changes, the others must adapt, and the context determines how those adaptations unfold. Through examples like a celebrity apology versus a mayor’s apology, the notes illustrate how delivery, tone, and medium shift with changes in audience and context. This tool equips students to analyze others’ writing and to craft more effective communications in real-world situations. The core definition to remember is that rhetoric is the way an author gets you to think, do, believe, or buy something, under the influence of the surrounding context. The instructor intends to save and post visuals to Canvas to reinforce these concepts throughout the course.